Author: Miss Cellania / Source: Neatorama
We were once taught that the universe meant everything there is. Then we learned that the universe is expanding. Expanding into what? If there’s room for it to expand, what’s in that room now? Gizmodo asked various scientists what is at the edge of the universe.
Most of the experts started out by explaining that over the distances we’d need to find out, we can only see into the past because of the time it takes for light to reach us. That’s the “observable universe.” Caltech physics professor Sean Carroll goes on to explain,Because we can only see…
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